Creating a working maven test

Created a working maven package test that creates a package that is
pushed to the internal gitlab package repository.

qa/qa.rb

@@ -407,6 +407,7 @@ module QA
     module DockerRun
       autoload :Base, 'qa/service/docker_run/base'
       autoload :LDAP, 'qa/service/docker_run/ldap'
+      autoload :Maven, 'qa/service/docker_run/maven'
       autoload :NodeJs, 'qa/service/docker_run/node_js'
       autoload :GitlabRunner, 'qa/service/docker_run/gitlab_runner'
     end

qa/qa/service/docker_run/maven.rb

+# frozen_string_literal: true
+
+module QA
+  module Service
+    module DockerRun
+      class Maven < Base
+        def initialize(volume_host_path)
+          @image = 'maven:3.6.2-ibmjava-8-alpine'
+          @name = "qa-maven-#{SecureRandom.hex(8)}"
+          @volume_host_path = volume_host_path
+
+          super()
+        end
+
+        def publish!
+          # When we run the tests via gitlab-qa, we use docker-in-docker
+          # which means that host of a volume mount would be the host that
+          # started the gitlab-qa QA container (e.g., the CI runner),
+          # not the gitlab-qa container itself. That means we can't
+          # mount a volume from the file system inside the gitlab-qa
+          # container.
+          #
+          # Instead, we copy the files into the container.
+          shell <<~CMD.tr("\n", ' ')
+            docker run -d --rm
+            --network #{network}
+            --hostname #{host_name}
+            --name #{@name}
+            --volume #{@volume_host_path}:/home/maven
+            #{@image} sh -c "sleep 60"
+          CMD
+          shell "docker cp #{@volume_host_path}/. #{@name}:/home/maven"
+          shell "docker exec -t #{@name} sh -c 'cd /home/maven && mvn deploy -s settings.xml'"
+        end
+      end
+    end
+  end
+end

qa/qa/specs/features/ee/browser_ui/5_package/maven_repository_spec.rb

+# frozen_string_literal: true
+
+module QA
+  context 'Package', :docker, :orchestrated, :packages do
+    describe 'Maven Repository' do
+      include Runtime::Fixtures
+
+      let(:group_id) { 'com.gitlab.qa' }
+      let(:artifact_id) { 'maven' }
+      let(:package_name) { "#{group_id}/#{artifact_id}".tr('.', '/') }
+      let(:auth_token) do
+        unless Page::Main::Menu.perform(&:signed_in?)
+          Runtime::Browser.visit(:gitlab, Page::Main::Login)
+          Page::Main::Login.perform(&:sign_in_using_credentials)
+        end
+
+        Resource::PersonalAccessToken.fabricate!.access_token
+      end
+      let(:project) do
+        Resource::Project.fabricate_via_api! do |project|
+          project.name = 'maven-package-project'
+        end
+      end
+
+      it 'publishes a maven package and deletes it' do
+        uri = URI.parse(Runtime::Scenario.gitlab_address)
+        gitlab_address_with_port = "#{uri.scheme}://#{uri.host}:#{uri.port}"
+        pom_xml = {
+          file_path: 'pom.xml',
+          content: <<~XML
+            <project>
+              <groupId>#{group_id}</groupId>
+              <artifactId>#{artifact_id}</artifactId>
+              <version>1.0</version>
+              <modelVersion>4.0.0</modelVersion>
+              <repositories>
+                <repository>
+                  <id>#{project.name}</id>
+                  <url>#{gitlab_address_with_port}/api/v4/projects/#{project.id}/packages/maven</url>
+                </repository>
+              </repositories>
+              <distributionManagement>
+                <repository>
+                  <id>#{project.name}</id>
+                  <url>#{gitlab_address_with_port}/api/v4/projects/#{project.id}/packages/maven</url>
+                </repository>
+                <snapshotRepository>
+                  <id>#{project.name}</id>
+                  <url>#{gitlab_address_with_port}/api/v4/projects/#{project.id}/packages/maven</url>
+                </snapshotRepository>
+              </distributionManagement>
+            </project>
+          XML
+        }
+        settings_xml = {
+          file_path: 'settings.xml',
+          content: <<~XML
+          <settings xmlns="http://maven.apache.org/SETTINGS/1.1.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+          xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.1.0 http://maven.apache.org/xsd/settings-1.1.0.xsd">
+            <servers>
+              <server>
+                <id>#{project.name}</id>
+                <configuration>
+                  <httpHeaders>
+                    <property>
+                      <name>Private-Token</name>
+                      <value>#{auth_token}</value>
+                    </property>
+                  </httpHeaders>
+                </configuration>
+              </server>
+            </servers>
+          </settings>
+          XML
+        }
+
+        # Use a maven docker container to deploy the package
+        with_fixtures([pom_xml, settings_xml]) do |dir|
+          Service::DockerRun::Maven.new(dir).publish!
+        end
+
+        project.visit!
+        Page::Project::Menu.perform(&:click_packages_link)
+        EE::Page::Project::Packages::Index.perform do |index|
+          expect(index).to have_package(package_name)
+
+          index.click_package(package_name)
+        end
+
+        EE::Page::Project::Packages::Show.perform do |show|
+          expect(show).to have_package_info(package_name, "1.0")
+
+          show.click_delete
+        end
+
+        EE::Page::Project::Packages::Index.perform do |index|
+          expect(index).to have_content("Package was removed")
+          expect(index).to have_no_package(package_name)
+        end
+      end
+    end
+  end
+end